Apparatus for rivet-setting and similar operations



s. LAKE. y APPARATUS FOR RIVET SETTING AND SIMILAR OPERATIONS.

APPLICATION FILED DEC.5, I9I9. 1,337,457. Patented Apr. 20, 1920.

4 SHEETS-SHEET I.

ATTORNEY.

S. LAKE. APPARATUS FOR RIvET SETTING AND SIMILAR OPERATIONS.

APPLICATION FILED DEC. 5,1919.

NVENTOR.

S. LAKE. APPARATUS FOR RIVET SETTING AND SIMILAR OPERATIONS.

APPLICATION FILED DEC. 5, I9I9. 1,337,457. Patented Apr. 20, 1920,.

4 SHEETS-SHEET 3.

[Nl/ENTOR.

ATTORNEY.

S. LAKE.

APPARATUS IFOR` RIVET SETTING AND SIMILAR OPERATIONS. APPL|CAT|0N FlLED DEC. 5, 1919.

1,337,451 APatented Apr. 20,1920.

4 SHEETS-SHEET 4.

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Z3 Z3 o i, oooooooo oo\\cooo :x Z oOo- 0000 0000000 ATTORNEY.

SIMON LAKE, OF MILFORD, CONNECTICUT.

I APPARATUS FOR RIVETSETTING .AND SIMILAR OPERATIONS;

Specication of Letters Patent.

Patented Apr. 20, 1920.

Appneation meek/December 5, i919. seriairNo. 342,694.

To all whom t may concern:

Be it known that I, SIMON LAKE, a citizen of the United States, residing at Milford, in the county of New Haven and State of Connecticut, have invented a certain new and useful Improvement in Apparatus for Rivet-Setting and SimilarO Operationsfof which the following ita full, clear, and exact description.

This invention relates to apparatus for performing rivet-setting and similar operations such asspot-welding, and is intended to facilitate such operations when conducted over large areas and with heavy tools.

One of the objects of the invention based on thisintention is the production ofv a toolsupp'orting device which will facilitate the handling of heavy and cumbersome tools during their manipulation'. l

Anotherobject is to provide such a toolsupporting device adapted to support, in

addition to the weight of the tools, theA weight of the cables, tubes, hose and the like which supply the tool operatingmedia.

The invention consists in carrying the tools for performing the operations of rivetheating, heading, etc. by an arm capable of pivotal action on its support, the support in turn being pivotally mounted, and` capableof, being extended longitudinally, and the toolsy being so mounted on the arm as to have a pivotaljaction in both horizontal-.and vertical directions, the'combination of all of these pivdtal-and `swiveling actions making possible a liniversal movement of the tools independently in all directions, and the eX- tensibili-ty of. the arm providing for operat- -ing over a large area to 'the end that the desired operations may be performed with ease and expedition. And ythe invention also contemplates ,various details of construction and arrangements of parts, including meansA for proper relative positioning of tools on opposite sides of a structure, all

as I will -proceed now to explain and finally Qn the accompanying drawin s illustrating the invention, in the severa figures of which like parts are similarly designated,

Figure 1 is a plan-view of the apparatus of the in'vention and showing theheating tool and the parts operated upon in section; Fig.

i 2 is an elevation iof ,the a paratus; Fig. 3

is a section taken in the p ane of line 3-'3 of Fig. 1 Fig. is anend viewl of the support and arm and electrical connections looking toward the left-hand end of Fig. 1, parts being removed. Fig. 5 is a section taken on line 5--5 of Fig. 4. Fig. 6 is an end `View of some of the parts looking toward the right-hand end of Fig. 1; Figs. 7 and 8 show schematic elevational and end views of the apparatus and its method of mounting' and operation; and Fig. \9 shows a modification wherein two heating elements are used for the purpose of forming a simple 'spot-weld.

Referring more particularly to the drawings, a stand or support 1 is provided whereby the whole of the operating mechanism upon one side of the structure operated upon may be supported, the stand being provided with suitable attaching means such as bolts 2, and adapted to be insulated from the structure. Thisstand is provided' with a projection or stud 8 upon which is rotatably mounted a bracket 4:, having a set-screw 5 working in an annular groove 6 in stud 3 whereby the bracket is held in fixed rotative adjustment on the stud, This bracket carries a yoke 7 pivoted on it by means of a pin 8 and in journals 9 in the -ends of the arms 10 of -the yokeis mounted for vpivotal ac-` tion, within the limits set bythe. base 11 of the yoke, an extensible tool-carrying arm 12, preferably of the lazy-tongs varlety, and providedat intervals throughout its length with members 13 which' are connected to it, and, in addition to acting as stiening and spacing members for' the plurality of lazytongs elements 14 of the arm, also serve as guides and supports for devices hereinafter described.

A t the ends of the arm 12 are carried heads 15, 155, the head 15 provided with a. support 16 upon which are mounted any desired or required number of counterweights 17. The head 15 is provided with a stud 18 upon which is'revolubly mounted a toolcarrying member 19 carrying in swivelbearings 20 a pressuretool or element 21,v such as an automatic hammer, here shown as an ordinary air hammer. lAt the outer end of this member 19 is revolubly mounted. a yoke 2 2 between the arms of which is pivoted a heating element or tool 23. The member19 and yoke 22 are suitably secured in revoluble relation to the stud 18 and each other, respectively, by set-screws 24 engaging suitable annular grooves .'2'5.

The heating element here shown` is an electrical heating tool, having a frame 26 by means of which it is mounted in the oke 22 and this frame carries a furnace headY 27 between which vand one end of the frame are mounted rods 28 upon which is supported a slidable member 29 engaging an electrode 30 of carbon or the like. The electrode 30 is so arranged as to have an arc-forming movement with relation to a heater disk 31, and the length of the arc is regulated by means of an adjustable stop 32 carried by one of the'rods 28 and adjustableby means of a threaded shaft 33, its adjusted position being fixed by means of a set-screw 34. The member 29 abuts against this stop 32 and is backed up by a. spring 35. It will thus be seen that when the handle 36 of member 29 is grasped and the member moved so as to compress the spring 35,'the electrode 30 will be moved into contact with disk 31 to forma circuit, and when the handle 36 is released the spring 35 will force the member 29 back against the stop 32 and the electrode 30 will be simultaneously moved back and away from disk 31 thus forming an arc between these parts.

Referring particularly to F ig. l, the disk- 31 is provided with a short tube 37 of refractory material. adapted toy receive and .1 heat the pro'ecting end of a rivet as shown,

an area of t e parts, around the rivet'bein heated by the body of the disk which wit the tube 37 is heated to a white heatkbylthe arc.

r.The head 27 is provided with a refractory1 lining 38 and a substantially transparent member 39 with which latter communicate sight openings 40 through which conditions inthe furnace chamber may be inspected.

In the modification shown in Fig. 9 where the heaters are designed for use as spotwelders only, the short tube 37 is replaced by a solid replaceable plug 41.

Current is supplied to theheatin tool by means of a lead 42 connected wit minal 43 insulated at 44 from the stand 1 and provided with a brush-member 45y in contact vwith a contact ring 46 mounted on and rotating with the bracket 4 but insulated from it at 47. Current is taken from this ring by a cable LIPS-connected with a member 49 which in turnis connected with a conductor 50 formed of a plurality of telescoping tubes `or the like carried by the .members 13 in openings 51 therein provided with suitable insulating bushings 52. Current is'taken off of this conductor'Ov at the tool-carryingend of the arm by a member 53 provided with Va cable or the like '54 con- I a ter-lv capable of operating movement over a large .area o f the structure, as indicated b the 7 and 8. In this mechanisnhI use a shaft 5,6

adapted to be inserted through any convenient hole\in the structure, such as a rivet hole, and upon the opposite ends of the shaft I mount for fixed rotation therewith sprockets 57 which must necessarily therefore turn together. O ver these sprockets Irun chains 58 connected at one end to the arms 12, their other ends being provided with weights 59. In using this positioning device the arms 12 will be so counterweighted at 16 as to have their tool-carrying ends heavy enough to exert a normal lifting 'force upon the weights 59 thus tending alwa s to exert a tension upon the chains 58,. he operators knowing before hand,by signals or the like, e

determined by the extent to which the chains 58 and with them the sprockets 57 are moved, and so'long vas the operators keep their chainstaut .the tools with which they are operating will always be directly opposite each other, and a movement of one will, through the rotation'of its sprocket, impart a corresponding motion tol the other by causing a corresponding rotation of. its sprocket. l

It will be Seen that the tool-Carr ing arm 12 is so pivoted lin the yoke 7 that t e length of the arm from this pivot to its tool-carry` ing end is approximately twice itslength vfrom the pivot'to the counterweight-carryin'g end, therebynecessitating theC use of counterweiglits approximately twice as heavy as the weight ofthe tool-carrying end plus the weight of the tools to balance the arm. It'will also be seen that the last linkage ofthe lazy-tongs at the we' hted end of the arm has links of one-hal the radial length of the other lmks of the arm whereby7 a' corresponding equilibrium of the arml 1s obtained lwhen ina vertical position.

By this arrangement I am enabled to provide anextension of the tool-Carr ing end of the arm double that of the weig t-carrying end,whereby interference of the weight- ,Carrying end with scaffolding and the like is 'minimlzed For stii'ening the extreme ends of the arm I provide short rods 62 attached to` the heads n 15, 415 and having sliding engagement with the members '13 in holes 63.

The manner of using my apparatus is subv stantially. as follows Assuming that the p electrical devices are properly connected K is released ythe electrode will move back and with a source of electrical energy, and the setting of rivets is the work in hand,`the operators on opposite sides of the structure locate their tools in proper relation. Afrivet is then inserted in the holes provided for it in the plates. The operator manipulatingthe anvil or holding tool 60 will then place his tool over the head ofj the rivet and :the operator on the other side will position his heating tool over the'rivet so that the projecting end 61 of the rivet'will enter the tube 37. He then operates handle 36 to move electrode 30 intocontact with disk 31. This establishes a circuit between the two tools through the rivet and when handle 36 forn lan arc which `will heat the rivet and surroundingparts to a welding heat, as previouslydescribed'. When such a heat has a0 Vand-,the rivet. andlparts heated hammered been' attained 'the fheating i001 "is removed ywith 'thehammer,l thus producing heading ofthe Iivfet" and weldinglof thev parts and rivet. v

Thefuseof the device in a spot-welding operationv where -tools as. shown in Fig.' 9

are used, isg'substantially the same, except that the -heating* tools lare moved step by step. alongthe'joint tobe welded,.the spots v heatedbemgj-immediately after .the heating operation :acted .uponby thev hammers onf` sary feed wires and hose vconnected there-vv lwith, but by theuse of m .invention 'these It WiIlthereOre be I provide means whereby rivetin 'A 'and vwelding operations inay be perfor'me wi'th-heavy,-cumber-AA rtable'v tools .Y withoutl-taxing the'4 .Spmesw'l n strengt 'cf the operator-or 'causing' him any linconvenience -in` manipulating'. them.

v'attached parts, including 'the tools, maybe .lplaced inl-a lnewN positionl and the operator. thereb. 7afforded a' new radius' of operation;

fixed structure with portable tools'. owing to lthe great Aweight ofsuchtools and the 'neces operations are made ossi le because all of A'theweighit of the too sand other devices is 'de fjineclian'lcally supported, and supported lin Suc .operations as those justdescnibedfex-f cept where light `work only, was T perjfor'med; l, .could not' hereto'for e'prformedfupen a with sai 4such a flexible manner as to be as easy of manipulation as are light tools in the hands of an operator.

It is to be understood that the inventicn is not limited to the specific embodiment shown and described as it' is possible that various changes in details of construction and arrangement of parts are within the spirit of the lnvention and the scope of the following claims.

What I claim is v 1. In an apparatusfor rivet-setting and the like, a heating element, a pressure-apsupport for-` these elements whereby they may be brought into and supported in operative relation to the work.'

2. In an apparatus for rivet-setting and the like, a heating element, a pressure-applying element, and an extensible counter- Weighted swiveling support for these ele- -ments whereby they-may be brought into .plying element, and an extensible swiveling they may be supported for independent movement relative to each other in operative relation to the work.

4. In an apparatus for rivet-settingV and the like, the combination with a tool support .mounted for movement relative to the work,

of a tool mounted thereon and carried thereby and capable of universal movementxrelative thereto. y 'Y 5. In an apparatus :for rivet-setting and the like, thecombination with a tool sup.- port movable relative to the work, of tools Y mounted thereon vand universally movable relative thereto and to each other.

6. yIn an apparatus for rivet-setting and the like, the v'combination with a revolubly mounted tool support including an` extensible counter balanced arm pi'votcd on an faxis normal to the axis ofrevolu'tion of said vsupport, of tools carried by` said arm' and y '.'inovable relative thereto and' togeach other The-tools vare so f.1 nounted" &S"-'to have 'a-y practically universal in'vement ,within 'ai wide-radius, and, ,yvhen operationsj within this radius-are completed, the stand and-its 1"?. In anj apparatus forrivet-settin counterweighted arml pivoted'` onfan axis normal 'to "the axis of revolution of said support, of a ,heating tool and a pressure..

tool/'carried by' said arm and movable relative thereto and to each other.

v 8.4 In an; apparatus :orfrivetsetting and the like,Y the combination .with 1,a tool sup-lf] port yhaving an extensible arm,o a rivetheating element and-a rivetheading element.

carried-gy, said farm, and means connected said arm' for conducting a heat-producing medium to said heating element.' i

- In apparatus .forNrivet-setting and the heating element and supported by like, the kcombination with 4an 'extensible counterweighted arm of an electric heatingv and means con-- element carried thereby, nected with said'heating element and carried by said arm for supplying electrical energy to said electric heating element.

10. In an apparatus for rivet-setting and the like, the combination with an extensible tool carrying arm, of lan electric heating tool carried thereby, and a telescoping conductor carried. by said arm and extensible adapted tofbe attached to the partsto be operated upon and provided with an extensible tool-carrying arm, of a rivet-heating tool and a rivet-heading tool carried thereby and movable relative thereto and to each other, whereby by the extensibility ol' said arm and the relative movements of said tools the tools may be brought manually into proper operating position .while they are supported by said arm.

13. In an apparatus for rivet-setting and the like, a swiveling support, an extensible arm pivoted thereon in a plane normal to the swiveling axis thereof, and a tool carried by said arm and movable relative thereto in both horizontal and vertical directions, wher'eby by the combined means of its own lmovements and those ofthe arm' and its support, a' limitedmovement in all direc'- tions is afforded said tool.

, said carriers in tudinally extensible laterally rigid members 19. Inan apparatus for rivet-setting and the like, the combination with a pair of independent tool carrying arms operating upon opposite sides of a structure, of means for maintaining said arms in proper relative position.

20. In an apparatus for rivet-setting and the-like, the combination with a pair of independent tool-carriers working together, ofV interconnected means for maintaining proper relative adjustment.

21. In a apparatus for rivet-settin and the like, the combination with a pair o toolcarriers, of means for maintaining said carriers in proper relative adjustment including a chain and weight mechanism attached to each carrier and interconnected.

22. In an apparatus for rivet-setting and the like,

y dependent tool-carriers, of mechanism at 14. In an apparatus for rivet-setting and rthe like, anarm composed of a plurality of lazy-tongs members sov arranged as to provide a substantiall late'rally rigid but longitudinally extensib e member.

152. In an apparatus for rivet-settin and the. like, an arm composed of a plurality of laterally rigid but longitudinally extensibleA members so arranged as to extensible structure.

16. In an apparatus for rivet-setting and the like,

produce a rigid an arm composed of four longitached to each carrier and inter-connected, whereby the .tools of said carriers' will be maintained in proper o erative relation.

23. In an apparatus or rivet-setting and the like, the combination with a palr of tool-carriers, of means comprising weighted members attached to each carrier, and intercommunicating mechanism between said members, whereby movement of one carrier will cause a corresponding relative movement of the other carrier.

In testimony whereof I have hereunto set my handthis lstlday of December A. D.

\ A SIMON'vv Witnesses W. H. FINCKEL, Jr., LUCY MCLAUGHLIN.

the combination with a pair of in-` "nsl 

